公开(公告)号：US20180272714A1

公开(公告)日：2018-09-27

申请号：US15924725

申请日：2018-03-19

Applicant: SII Printek Inc.

Inventor： Hitoshi NAKAYAMA ,  Takeshi SUGIYAMA ,  Daichi NISHIKAWA ,  Eriko MAEDA

IPC: B41J2/16 ,  C23C18/32 ,  C23C18/42 ,  C23C18/16 ,  G03F7/16 ,  H01L41/047 ,  H01L41/09 ,  H01L41/29

CPC classification number: B41J2/1643 ,  B41J2/14209 ,  B41J2/1607 ,  B41J2/1609 ,  B41J2/1623 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2/1634 ,  B41J2/1635 ,  B41J2/1642 ,  B41J2002/14491 ,  C23C18/1605 ,  C23C18/32 ,  C23C18/42 ,  G03F7/16 ,  H01L41/047 ,  H01L41/09 ,  H01L41/1876 ,  H01L41/29

Abstract: A discharge channel and a non-discharge channel are formed to have a similar shape, that is, to include extension portions and raise-and-cut portions continuing from end portions of both the extension portions, respectively. Then, imparting of a catalyst, washing of an unnecessary catalyst, plating, and the like are performed on a target surface, as a plating step. In an embodiment, an electrode clearance groove is formed after the plating step. Since channel grooves for the discharge channel and the non-discharge channel have a similar shape, it is possible to cause a water flow to uniformly flow in the channels when washing is performed, and thus to avoid an occurrence of a situation in which a lump is formed in the channel groove by plating.

公开(公告)号：US20240198671A1

公开(公告)日：2024-06-20

申请号：US18535090

申请日：2023-12-11

Applicant: SII Printek Inc.

Inventor： Hitoshi NAKAYAMA

IPC: B41J2/14 ,  B41J2/045 ,  B41J2/095

CPC classification number: B41J2/14233 ,  B41J2/04581 ,  B41J2/095 ,  B41J2/14072 ,  B41J2/1433 ,  B41J2/155

Abstract: A head chip, a liquid jet head, and a liquid jet recording device each capable of increasing the pressure to be generated while achieving an increase in manufacturing efficiency and yield ratio are provided. The head chip according to an aspect of the present disclosure includes a flow channel member provided with a pressure chamber containing a liquid, an actuator plate which is arranged on the flow channel member in a state of being opposed in a first direction to the pressure chamber, and a drive electrode configured to deform the actuator plate in the first direction to change a volume of the pressure chamber. A recessed part with respect to a first surface facing to the flow channel member in the first direction is formed in a portion of the actuator plate, the portion overlapping the pressure chamber when viewed from the first direction. The drive electrode includes a first electrode formed on an inner surface of the recessed part, and a first opposed electrode which is formed on an upper surface of the actuator plate so as to be opposed to the first electrode, and which is configured to generate a potential difference from the first electrode.

公开(公告)号：US20240198670A1

公开(公告)日：2024-06-20

申请号：US18537472

申请日：2023-12-12

Applicant: SII Printek Inc.

Inventor： Hitoshi NAKAYAMA

IPC: B41J2/14

CPC classification number: B41J2/14201

Abstract: A head chip, a liquid jet head, and a liquid jet recording device each capable of effectively transferring elastic energy to ink in a pressure chamber to increase pressure to be generated in the pressure chamber are provided. The head chip according to an aspect of the present disclosure includes a flow channel member in which a plurality of pressure chambers penetrating in a first direction is arranged in a second direction crossing the first direction, a first member which includes an actuator plate deformable in the first direction, and which is bonded on the flow channel member in a state of closing the pressure chambers from a first side in the first direction, and a second member which includes a jet hole plate provided with jet holes communicated with the pressure chambers, and which is bonded on the flow channel member in a state of closing the pressure chambers from a second side as an opposite side to the first side in the first direction. The flow channel member includes a partition wall configured to partition the pressure chambers adjacent to each other. The bonding area between the partition wall and the second member is larger than the bonding area between the partition wall and the first member.

公开(公告)号：US20190143682A1

公开(公告)日：2019-05-16

申请号：US16186957

申请日：2018-11-12

Applicant: SII Printek Inc.

Inventor： Daichi NISHIKAWA ,  Misaki KOBAYASHI ,  Tomoki KAMEYAMA ,  Hitoshi NAKAYAMA

IPC: B41J2/14

CPC classification number: B41J2/1433 ,  B41J2/14072 ,  B41J2/14209 ,  B41J2002/14491

Abstract: There are provided a head chip, a liquid jet head, and a liquid jet recording device capable of enhancing the reliability. The head chip according to an embodiment of the disclosure is a head chip adapted to jet liquid including an actuator plate having a plurality of ejection grooves arranged side by side along a first direction, and extending in a second direction crossing the first direction, a plurality of common electrodes formed on respective inner surfaces of the plurality of ejection grooves, and a commonalization interconnection adapted to electrically connect the plurality of common electrodes to each other, and a nozzle plate having a plurality of nozzle holes individually communicated with the plurality of ejection grooves.

公开(公告)号：US20240198674A1

公开(公告)日：2024-06-20

申请号：US18536714

申请日：2023-12-12

Applicant: SII Printek Inc.

Inventor： Hitoshi NAKAYAMA

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/1433 ,  B41J2/1623 ,  B41J2002/14491

Abstract: A head chip, a liquid jet head, and a liquid jet recording device each capable of effectively transferring the elastic energy to the ink in the ejection channel to obtain a desired ejection performance are provided. The head chip according to an aspect of the present disclosure includes an actuator plate in which jet channels and non-jet channels are alternately arranged, a side-surface common electrode formed on inner side surfaces opposed to each other in a second direction out of inner surfaces of the jet channel, a bottom-surface common electrode formed on a bottom surface facing to a first side in a thickness direction out of the inner surfaces of the jet channel, a first individual electrode which is formed on inner side surfaces opposed to each other in the second direction out of inner surfaces of the non-jet channel, and which is configured to generate a potential difference from the side-surface common electrode, and a second individual electrode which is disposed on an opposite surface facing to a second side in the thickness direction out of the actuator plate, and which is configured to generate a potential difference from the bottom-surface common electrode.

公开(公告)号：US20240198669A1

公开(公告)日：2024-06-20

申请号：US18536983

申请日：2023-12-12

Applicant: SII Printek Inc.

Inventor： Hitoshi NAKAYAMA

IPC: B41J2/14

CPC classification number: B41J2/14201

Abstract: A head chip, a liquid jet head, and a liquid jet recording device which effectively transfer elastic energy to ink in a pressure chamber to increase pressure to be generated in the pressure chamber are provided. The head chip according to an aspect of the present disclosure includes an actuator plate provided with a pressure chamber in which a liquid is contained, a jet hole plate which has a jet hole communicated with the pressure chamber, and which is overlapped on the actuator plate in a thickness direction of the actuator plate, and a drive electrode which is configured to generate an electric field in the actuator plate to thereby deform the actuator plate in the thickness direction and a crossing direction crossing the thickness direction to expand or contract a volume of the pressure chamber.

公开(公告)号：US20230191784A1

公开(公告)日：2023-06-22

申请号：US18082156

申请日：2022-12-15

Applicant: SII Printek Inc.

Inventor： Hitoshi NAKAYAMA

IPC: B41J2/14

CPC classification number: B41J2/14201 ,  B41J2002/14491

Abstract: A head chip, a liquid jet head, and a liquid jet recording device each capable of achieving a reduction in size and an increase in nozzle density are provided. The head chip according to an aspect of the present disclosure includes a flow channel member having a flow channel formation area including a flow channel through which liquid flows, and a pressure chamber which is communicated with the flow channel, and in which the liquid is contained, an actuator plate which is stacked on the flow channel member in a state of being opposed to the pressure chamber in a first direction, a drive electrode which is formed on a surface facing to the first direction in the actuator plate, and which is configured to deform the actuator plate in the first direction so as to change a volume of the pressure chamber, and a pad which is formed on a pad formation surface, and which is coupled to the drive electrode, and on which external wiring is mounted, wherein the pad formation surface is an area overlapping the flow channel formation area when viewed from the first direction, and the pad formation surface is disposed so as to face to an opposite side in the first direction to the flow channel member.

公开(公告)号：US20230191781A1

公开(公告)日：2023-06-22

申请号：US18082257

申请日：2022-12-15

Applicant: SII Printek Inc.

Inventor： Hitoshi NAKAYAMA

IPC: B41J2/14 ,  B41J2/045

CPC classification number: B41J2/14032 ,  B41J2/14072 ,  B41J2/04585

Abstract: A head chip, a liquid jet head, and a liquid jet recording device each capable of increasing pressure generated while achieving power saving are provided. The head chip according to an aspect of the present disclosure includes a flow channel member having a pressure chamber containing liquid, an actuator plate which is stacked on the flow channel member in a state of being opposed to the pressure chamber in a first direction, a drive electrode which is formed on a surface facing to the first direction in the actuator plate, and which is configured to deform the actuator plate in the first direction to change a volume of the pressure chamber, and a non-drive member which is stacked at an opposite side to the flow channel member across the actuator plate in the first direction, and which is configured to limit a displacement of the actuator plate toward an opposite side to the flow channel member in the first direction.

公开(公告)号：US20180272712A1

公开(公告)日：2018-09-27

申请号：US15924707

申请日：2018-03-19

Applicant: SII Printek Inc.

Inventor： Hitoshi NAKAYAMA ,  Takeshi SUGIYAMA ,  Daichi NISHIKAWA ,  Eriko MAEDA

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/14201 ,  B41J2/14209 ,  B41J2/1433 ,  B41J2/1607 ,  B41J2/1609 ,  B41J2/1632 ,  B41J2/1634 ,  B41J2/1643 ,  B41J2002/14491 ,  B41J2202/22

Abstract: Channel grooves for a discharge channel and a non-discharge channel are formed in the surface of an actuator plate by cutting. The discharge channel includes an extension portion and a raise-and-cut portion, and the non-discharge channel also includes an extension portion and a raise-and-cut portion. In an embodiment, an electrode clearance groove is formed in advance by cutting with a dicing blade or the like. After the electrode clearance groove is formed, an electrode is formed by plating. Since plating is performed after the electrode clearance groove is formed, a clearance groove electrode is integrally formed with an AP-side common pad in the electrode clearance groove, and thus the clearance groove electrode and the AP-side common pad are short-circuited. Thus, an electrode separation portion is formed by cutting a short-circuited portion of the clearance groove electrode and the AP-side common pad through cutting or irradiation with laser.